公开(公告)号：US09607631B2

公开(公告)日：2017-03-28

申请号：US14950577

申请日：2015-11-24

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Minjie Ma ,  Steven Granz ,  Kaizhong Gao ,  Wenzhong Zhu ,  Edward C. Gage

IPC: G11B5/09 ,  G11B5/012 ,  G11B11/105 ,  G11B5/00

CPC classification number: G11B20/1889 ,  G11B5/012 ,  G11B5/09 ,  G11B5/59633 ,  G11B5/59638 ,  G11B5/6088 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10521 ,  G11B11/10595 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1833 ,  G11B27/3027 ,  G11B2005/0021 ,  G11B2020/1222 ,  G11B2020/1232 ,  G11B2020/1238 ,  G11B2020/1292

Abstract: A storage device includes a storage controller configured to write a band of data tracks using a first recording method until criterion is met. The first method may be a conventional recording method. After the criterion is met, the storage controller is configured to write data to the band using a second recording method. The second recording method may be an enhanced capacity recording method such as interlaced magnetic recording (IMR) or shingled magnetic recording (SMR).

公开(公告)号：US20160148626A1

公开(公告)日：2016-05-26

申请号：US14950577

申请日：2015-11-24

Applicant: Seagate Technology LLC

Inventor： Tim Rausch ,  Minjie Ma ,  Steven Granz ,  Kaizhong Gao ,  Wenzhong Zhu ,  Edward C. Gage

IPC: G11B5/09 ,  G11B20/12 ,  G11B5/012

CPC classification number: G11B20/1889 ,  G11B5/012 ,  G11B5/09 ,  G11B5/59633 ,  G11B5/59638 ,  G11B5/6088 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10521 ,  G11B11/10595 ,  G11B20/12 ,  G11B20/1217 ,  G11B20/1833 ,  G11B27/3027 ,  G11B2005/0021 ,  G11B2020/1222 ,  G11B2020/1232 ,  G11B2020/1238 ,  G11B2020/1292

Abstract: A storage device includes a storage controller configured to write a band of data tracks using a first recording method until criterion is met. The first method may be a conventional recording method. After the criterion is met, the storage controller is configured to write data to the band using a second recording method. The second recording method may be an enhanced capacity recording method such as interlaced magnetic recording (IMR) or shingled magnetic recording (SMR).

Abstract translation: 存储装置包括存储控制器，该存储控制器被配置为使用第一记录方法写入数据轨道带，直到满足标准。 第一种方法可以是常规记录方法。 在满足标准之后，存储控制器被配置为使用第二记录方法将数据写入频带。 第二记录方法可以是诸如隔行磁记录（IMR）或带状磁记录（SMR）的增强容量记录方法。

公开(公告)号：US09218849B1

公开(公告)日：2015-12-22

申请号：US14552139

申请日：2014-11-24

Applicant: Seagate Technology LLC

Inventor： Jon D. Trantham ,  Tim Rausch ,  John W. Dykes ,  Edward C. Gage

IPC: G11B27/36

CPC classification number: G11B27/36 ,  G11B20/1879 ,  G11B20/1889 ,  G11B2005/0021 ,  G11B2220/2516

Abstract: A data storage device may employ a heat assisted magnetic recording data writer separated from a plurality of data bits stored on a media surface of a data storage medium. At least one controller and a prediction circuit that is connected to the heat assisted magnetic recording data writer can be configured to remap the media surface in response to a predicted heat assisted magnetic recording data writer failure.

Abstract translation: 数据存储装置可以使用从存储在数据存储介质的介质表面上的多个数据位分离的热辅助磁记录数据写入器。 连接到热辅助磁记录数据写入器的至少一个控制器和预测电路可以被配置为响应于预测的热辅助磁记录数据写入器故障重新映射介质表面。

公开(公告)号：US09123355B1

公开(公告)日：2015-09-01

申请号：US14028413

申请日：2013-09-16

Applicant: Seagate Technology LLC

Inventor： Housan Dakroub ,  Christine Green ,  Edward C. Gage ,  Tim Rausch

IPC: G11B11/00 ,  G11B5/02 ,  G11B13/04 ,  G11B11/105 ,  G11B5/00 ,  G11B7/126

CPC classification number: G11B5/02 ,  G11B5/455 ,  G11B7/126 ,  G11B11/10515 ,  G11B11/1053 ,  G11B11/10595 ,  G11B13/04 ,  G11B2005/001 ,  G11B2005/0021

Abstract: A circuit may be configured to reduce the power consumption and extend the life of a near field transducer of a heat-assisted magnetic recording (HAMR) device by pulsing a laser. The current that drives the laser may be of a frequency and magnitude so as to approximate the value of a continuous current in a continuous, non-pulsed laser. A system on chip (SOC), which may include a HAMR channel, can generate a laser data signal that may be synchronous with, and offset from, a write signal by a certain period of time, and may calculate certain parameters such as peak current and pulse width that may be applied to the signals in a preamp. The preamp signals can be used to program data to a disc medium.

Abstract translation: 电路可以被配置为通过脉冲激光来减少功率消耗并延长热辅助磁记录（HAMR）装置的近场传感器的寿命。 驱动激光器的电流可以是频率和幅度，以便在连续的非脉冲激光器中接近连续电流的值。 可以包括HAMR通道的片上系统（SOC）可以产生与写入信号同步并偏移一定时间段的激光数据信号，并且可以计算某些参数，例如峰值电流 以及可以施加到前置放大器中的信号的脉冲宽度。 前置放大器信号可用于将数据编程到盘介质。